Home / 2,190.08-3,275.14-1,635.18

Finding the Fourth Proportional to 2,190.08, 3,275.14 and 1,635.18

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Solution

The fourth proportional to 2,190.08, 3,275.14 and 1,635.18 is: 2,445.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.08 : 3,275.14 = 1,635.18 : x
  2. Step 2: Convert to fraction form
    2,190.08/3,275.14 = 1,635.18/x
  3. Step 3: Cross multiply
    2,190.08x = 3,275.14 × 1,635.18
  4. Step 4: Simplify right side
    2,190.08x = 5,355,439.34
  5. Step 5: Solve for x
    x = 5,355,439.34/2,190.08
  6. Step 6: Final answer
    x = 2,445.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.